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I wanted to build this project during Incursion, but unfortunately ran out of time.
Overall, i believe this is the highest DPS variation of the Molten Strike HoWA build out there.
In general, Molten Strike itself can be done and played in multiple ways. I did a lot of research on this. And i like researching stuff :)
I would personally rate them from top dps to bottom.
1) HoWA Ascendant Dual Claws
2) Brutul Lead Sprinkler Ascendant
3) 1 Claw+Shield Ascendant / Jugg
4) Poison Stacking Assassin / Ngamahu Chieftain
5) Grelwood Shank / Nebuloch builds
This is based on my personal research and of cause you can agree or disagree with it, but the CI HoWA version of the build is without a doubt the biggest dps you can get out of Molten Strike so far! Of cause it's also the most expensive one!

======================================================================================How does it all work, in general?
You stack insane amount of intelligence (over 1600 potentially) and get crazy amount of added Lightning Damage to your attacks by using

and good amount of attack speed from Dexterity.
Going CI makes you immune to Chaos Damage.
You get leech from tree and apply it to Energy Shield instead of life by using Ghost Reaver passive. Additionally you get Energy Shield Per Hit from a Discipline Watcher's Eye
======================================================================================1) PROS

Spoiler

+decent AOE with Ancestral Call
+crazy single target damage
+can run Reflect
+huge ES/Life on Hit / Leech even without Vaal Pact. Can tank most bosses

Start using Wrath + Herald of Purity as soon as they are available.
You can also use Herald of Thunder for early game. Drop Herald later when you get Discipline and some ES gear. You can use Herald again once you get enough reduced reservation and Enlighten.
At level 22 get: https://pathofexile.gamepedia.com/Hand_of_Thought_and_Motion
When available, grab 1 https://pathofexile.gamepedia.com/Wildfire from quest and buy another one. Put them in corresponding jewel sockets next to 40 or more strength (watch the tree in PoB)